Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
93 − 10 = ______
67 − 10 = ______
53 − 10 = ______
28 − 10 = ______
46 + 10 = ______
5 × 10 = ______
65 + 20 = ______
2 × 10 = ______
86 + 20 = ______
41 − 10 = ______
77 + 20 = ______
25 + 10 = ______
60 + 20 = ______
74 + 10 = ______
3 × 10 = ______
40 + 20 = ______
79 + 20 = ______
51 + 20 = ______
8 × 10 = ______
81 + 20 = ______
